Merge pull request #562 from rstudio/changelog-update

Update changelog

Author: wch

CHANGELOG.md

@@ -7,6 +7,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 ## Pending Next Release
 
 ### Added
+- Added support for creating manifests for Shiny Express apps.
 - Added support for deploying interactive Quarto dashboards that use Shiny Express syntax.
 
 ### Changed